<template>
  <div class="mui-numbox" data-numbox-min='1'>
    <button class="mui-btn mui-btn-numbox-minus" type="button">-</button>
    <input id="test" class="mui-input-numbox" type="number" value="1" @change="countChanged" ref="numbox" />
    <button class="mui-btn mui-btn-numbox-plus" type="button">+</button>
  </div>
</template>

<script>
import mui from 'mui/js/mui.min'
export default {
  props: ['max'],
  mounted () {
    // 初始化
    mui('.mui-numbox').numbox()
  },
  methods: {
    countChanged () {
      // 每当购买数量改变时，立即把最新的数据传给父组件
      this.$emit('getcount', parseInt(this.$refs.numbox.value))
    }
  },
  watch: {
    'max': function (newVal, oldVal) {
      mui('.mui-numbox').numbox().setOption('max', newVal)
    }
  }
}
</script>

<style lang="scss" scoped>
</style>
